Question

How do you solve this ? the fastest way possible :)

Answer 1

38n^2 + 304n - 128 = -2n^2

Answer 2

Please help :)

Answer 3

1. Add 2n^2 to both sides first

Answer 4

please continue :)

Answer 5

I got 40n^2 + 304n - 128 = 0

Answer 6

2. Factor out 8

Answer 7

8(5n^2 + 38n - 32)

Answer 8

You forgot the equal zero part

Answer 9

8(5n^2 + 38n - 32) = 0

Answer 10

3. Divide both sides by 8

Answer 11

w8 I think I got something wrong

Answer 12

32 x 8 = 256

That definitely isn't right

Answer 13

Did you figure out what you did wrong yet?

Answer 14

it should be 8(5n^2 + 38n - 16) right?

Answer 15

equal zero :/

Answer 16

You keep forgetting the equal zero

Answer 17

ok, I'll just try to solve it.
I think I am getting confused because I divided 128 by 8 wrongly :)
I'll just ask you if am I stuck with some part :)

Answer 18

8(5n-2)(n+8)=0
(5n-2)(n+8)=0

n=2/5 , n=-8
Is this correct?

Answer 19

Thanks!
I believe it is correct :)

Answer 20

It's correct. Good job